The Applanation Tonometer 900, an accessory to the Slit Lamp 900, can be especially adapted in an optimum manner to combine with other HAAG-STREIT equipment. Because of its versatility, the Applanation Tonometer can also be mounted onto and combined with other equipment.
Designed to fit the Haag-Streit 900BM slit lamp. This model also fits on most Haag-Streit style slit lamps. This high quality instrument provides highly accurate intra-ocular pressure readings.
The measurement of the ocular pressure is carried out on the patient sitting at the slit lamp in conjunction with other routine microscopic examinations.
High accuracy of the measurement - the average deviation in any one single examination does not exceed ± 0.5 mm Hg.
The intraocular pressure in mm Hg is found by multiplying the drum reading by ten.
Scleral-rigidity is not to be taken into account as the small volumetric displacement of 0.56 mm3 increases the intraocular tension by about 2.5 % only.
Repeated measuring procedures do not reduce the ocular pressure, as no massaging effect occurs.
The instrument stays permanently mounted to the slit lamp and is swung into place when IOP readings are required.